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We are looking for the possible blood types of a baby.
Parental information:
- Mother type O pos -- can only have OO and Rh (++) or (+-)
- Genes to contribute: O, (+), (-)
- Father type O neg -- can only have OO and Rh (--)
- Genes to contribute: O, (-)
Baby recieves one gene from each parent:
- Baby is type OO (+-)
- Baby is type OO (--)
Generally speaking, because only one ABO gene can be contributed [O], the baby can only be Type O
HOWEVER: There is more to ABO blood typing that just the ABO gene.
There is also an inhibitory gene that will change any genotype into the phenotype O.
Therefore a person with genetically AB blood can be tested as having Type O.
- Baby is type A+ which can be genetically AA or AO
If one parent has the inhibitory gene affecting their AA, AO or AB type,
then the Type A baby is definitely possible.
___________________________________________________________**Yes. My son is 0- and my daughter in law is 0+ and they just had a A+ baby boy. It is very rare but the doctor said it can happen because every has a primary and secondary (recessive) blood gene. Since my d-i-law's father is A+ and her mother is 0+ and his parents are both 0+ but his mothers mother is A+ and her Father is 0+ there are many recessive A+ genes in their DNA blood type therefore they can have a A+ child. (Example mother is O+/A+ and father is 0-/A+ equals= A+/0 child.) 0 seems to be universal and can throw off a recessive gene. In our case; since it is rare; the baby and the mother's blood types caused him to have alot of jaundice (18) so he had to go back in hospital to be under the light for an additional 24 hours to bring it down. She was nursing and her milk had not come in to give him the fluids to fight off the excess billiruben count. Other than that; it will not be a problem for either of them.
Hope this helps, as it is hard to find this information on the internet. Most sights say no because they are stating the normal without considering the recessive secondary gene type that are rare. Ask a doctor .....it happens
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoThe first question you probably hear is "Are you sure he's your father?"
I have the same question as you, only it's my Mother that has the AB Neg blood type. And I'm sure she's my mother.
In my research, I've learned there are really only two explanations for this. One is the Bombay blood group. So named for this phenomenon being seen almost exclusively in Bombay, India. The other is Chimera blood type.
There is good information on both out there.
I've asked many physicians, phlebotomists, lab technicians, nurses and other medical personnel which leaves them scratching their heads. I also have two other siblings with O Pos blood type. Two others have the normal A Pos and one with B Pos.
I await an answer to your question with equal interest.
Wiki User
∙ 10y agoWe are looking for the possible blood types of a MOTHER.
Parental information:
- Father type AB pos -- can only be AB with Rh (++) or (+-)
- Genes to contribute: A, B, (+), (-)
- Baby type O pos -- can only be OO with (++) or (+-)
- Baby would have to receive an O from each parent to be O pos.
- The father could contribute the Rh (+) gene.
HOWEVER: There is more to ABO blood typing that just the ABO gene.
There is also an inhibitory gene that will change any genotype into the phenotype O.
Therefore a person with genetically AB blood can be tested as having Type O.
- Baby is type O pos.
Wiki User
∙ 11y agono the child would also have A positive blood as does the baby mother and father
Wiki User
∙ 14y agoNo. Neither parent has a B allele to give to the child. The child can only be type A or O.
Wiki User
∙ 13y agocan A negative and O positive parents have an AB positive child?
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Can a child have a different blood type from the father?
My Mother was O pos. Dad was AB pos. Can I have a different blood type such as A pos? My siblings have AB pos.
If a mother is A pos can her child be B neg?
Yes, this will depend on the father blood type, so for a child to be B-, the father could be either B or AB negative or positive.
What are the possible parental bloodtypes for a child with the blood-type A positive?
There are many possibilities, but two things are certain: at least one parent must be type A or AB, and at least one parent must be Rh + A child with blood type A+ can have the following combinations of parents: Mother A+, Father A+ Mother A+, Father A- Mother A-, Father A+ Mother A+, Father B+ Mother A+, Father B- Mother A-, Father B+ Mother A+, Father AB+ Mother A+, Father AB- Mother A-, Father AB+ Mother A+, Father O+ Mother A+, Father O- Mother A-, Father O+ Mother B+, Father A+ Mother B+, Father A- Mother B-, Father A+ Mother B+, Father AB+ Mother B+, Father AB- Mother B-, Father AB+ Mother AB+, Father A+ Mother AB+, Father A- Mother AB-, Father A+ Mother AB+, Father B+ Mother AB+, Father B- Mother AB-, Father B+ Mother AB+, Father AB+ Mother AB+, Father AB- Mother AB-, Father AB+ Mother AB+, Father O+ Mother AB+, Father O- Mother AB-, Father O+ Mother O+, Father A+ Mother O+, Father A- Mother O-, Father A+ Mother O+, Father AB+ Mother O+, Father AB- Mother O-, Father AB+
If mother is O positive child is A positive what must father be?
The father can be A-, A+, AB-, or AB+
Can a mother with AB and father with O have a child with A blood?
NO
If mother is B- and father B plus can child be AB?
If my mother is b- and my dad is b+ could there be a child ab- please
Can a mother has A positive blood type and a father has AB positive and the child has B positive?
Since both parents are Rh+, the child will also be Rh+.If the Mother is A0+ and Father is AB+, the child will be: AA+ AB+ AO+ or BO+ So yes this does produce a B+ child.If the Mother is AA+ and the Father is AB+, the child will be AB+ or AA+ neither of these is B+ so this doesn't produce a B+ child.
If your father is type o positive and your mother is type ab negative what is the possible blood type of a 6th child?
These are the possibilities: A neg or A pos B neg or B pos The father will always give an 0 to the child, which is infact zero. The mother will give an A or a B. An A and 0 gives A An B and 0 gives B The rhesus factor can be positive or negative.
If mother and father is A blood group can child be B positive?
If the mother is A, and the father is A, then the child will only have A antigens and will thus be blood type A. If father or mother are AB, then the child can end up with AB, A, or B blood type. http://en.wikipedia.org/wiki/Blood_type
when father have ab mother 0 plus child have?
A or B
Can a A Negative Father and an AB Positive mother have an A Negative child?
The child will be A or B or AB, Rh+ or Rh- . So yes, the child can be A-.
Can a type AB child have a father with type A blood?
Yes, if the Mother is type B or AB.
